var test = require('../util/test')(__filename);

var template = require('../../packages/string-template');

test('variables replaced by simple data', function(t) {

t.plan(1);

var data = {a: 3, b: 4};

var result = template('this is {{a}} and this is {{b}}', data);

t.equal(result, 'this is 3 and this is 4');

t.end();

});

test('variable used more than once', function(t) {

t.plan(1);

var data = {a: 3, b: 4};

var result = template(

'this is {{a}} and so is {{a}} and this is {{b}}',

data

);

t.equal(result, 'this is 3 and so is 3 and this is 4');

t.end();

});

test('using nested variables', function(t) {

t.plan(1);

var data = {

a: {

aa: {

aaa: 'apple',

bbb: 'pear',

},

bb: 'orange',

},

b: 'plum',

};

var str =

'2 {{a.aa.aaa}}s, a {{a.aa.bbb}}, 3 {{a.bb}}s and a {{b}}. Yes 1 {{a.aa.bbb}}.';

var result = '2 apples, a pear, 3 oranges and a plum. Yes 1 pear.';

t.equal(template(str, data), result);

t.end();

});

test('overlapping variables resolve', function(t) {

var str = 'the answer is {{a{{b}}hmmm}}';

var data = {a: 3, 'a{{b': 4};

t.equal(template(str, data), 'the answer is 4hmmm}}');

t.end();

});

test('unresolved variables return empty strings', function(t) {

var str = 'a {{a}}, b {{b}}, c {{c}}';

var data = {a: 3, c: 4};

t.equal(template(str, data), 'a 3, b , c 4');

t.end();

});